Symptoms?

According to glow AF is due tomorrow. For about a week now maybe longer I've been extreamly tired, felt a little sick at various times of day, headaches, and every morning I've woken up feeling like I'm running a fever and achy and a few nights I've felt that too. I had cramps the other night and pulling above my belly button.  I've tested and gotten negatives. Would y'all suggest test again tomorrow or do you think af is coming?